Grate



(No Model.)

, J. BALLOU.

GRATB. No. 286,574. Patented Oct. 16, 1883.

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UNITED STATES ATENT Fries.

JOHN BALLOU, OF SOMERVILLE, MASSACHUSETTS.

GRATE.

SPECIFICATION forming part of Letters Patent No. 286,574, dated October16, 1883.

Application tiled June 13, 1883. (No model.) l

To afZZ whom it may concern.-

Be it known that I, Jenn BALLOU, a citizen of the United States,residing in Somerville, county of Middlesex7 and State of Massachusetts,h ave invented anew and useful Improvement in Grates, of which thefollowing is a speeication. y

My invention relates to certain improvements in that class of gratescommonly used in cook-stoves or ranges.

The obli eet of my improvement is to provide a grate which affordsfacilities for keeping the ire in proper condition with an economicalconsumption of fuel, and it also allows the grate to expand and contractwithout undue strain upon any of its parts, all of which is explainedmore in detail inthe following specication and accompanyingv drawings.

In the drawings, Figure l is a plan or top viewer' the grate, and Fig. 2is alongitudinal section through the center.

Similar letters refer to similar parts.

From the longitudinal bar a, which is the rear of the grate, a series ofbars project parallel to each other and at right angles to the bar a, tothe extreme front of the grate, with the usual spaces between the bars.The two outside barsf-one at each end-are provided with studs orbearings c e, by which the grate is supported in a manner so that it isnearly balanced, the rear being slightly heavier than the front part,and thus having a tendency to keep the grate in a level position when inuse, and by which means the grate is permitted' to tilt in a mannercommon to grates of this class, one of the studs or bearings beingadapted to receive a wrench or other suitable implement forthe purposeof tilting the grate when required. By this inode of construction thespaces between the bars at the front of the grate are open, each barbeing free at the front end and independent of eachother,andinconsequence of this mode of construction the grate is permitted toexpand and contract without causing a strain upon any part of it.v Bythis mode of construction, also, a poker or other suitable implement maybe thrust under the grate and between the bars, and the fuel gentlylifted, thus admitting the air necessary for Y grate, at theirunderneath side, are providedwith double longitudinal ribs; or, in otherwords, aregrooved out7 as shown in the sectional drawings, Fig. 2, thusallowing a free circulation of air around the bars, and obviating thetendency to warp. i y

The grate may be rectangular, square, or of any other shape, depending,of course, upon the style or shapeoi' the stove or range for which itmay be specially designed.

I am aware that grates have been constructed in a manner so that thetransverse bars were independent oi' each other at the front of thegrate, and also that double ribbed or grooved bars have heretofore beenused; hencel make no broad claim to these special features as distinctelements ci' my invention.

The combination, in a grate, of a longitudinal rear bar, `a series ofdouble ribbed or grooved bars extending at right angles to the rear bar,and the studs or bearings e and c, located at or near the center of theoutside bars, in the manner and for the purpose substantially as setforth.

y JOHN BALLO.

' Vitnesses:

Gno. C. PAINE, H. Hown.

